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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
19
pubmed:dateCreated
2006-9-28
pubmed:abstractText
Maternal uniparental disomy for chromosome 14 [upd(14)mat] is associated with a characteristic phenotype including pre- and postnatal growth retardation, muscular hypotonia, feeding problems, motor delay, small hands and feet, precocious puberty and truncal obesity. Patients with upd(14)mat show features overlapping with Prader-Willi syndrome (PWS) and are probably underdiagnosed. Maternal upd(14) is frequently described in carriers of a Robertsonian translocation involving chromosome 14, but is also found in patients with a normal karyotype. Based on the above mentioned criteria we have identified six patients with upd(14)mat including two patients with a normal karyotype, one patient with a de novo Robertsonian translocation (14;21), one patient with a familial Robertsonian translocation (13;14) and two patients with a marker chromosome. In addition, we analyzed a cohort of 33 patients with low birth weight, feeding difficulties and consecutive obesity in whom PWS had been excluded by methylation analysis of SNRPN. In four of these patients (12%) we detected upd(14)mat. For rapid testing of upd(14)mat we analyzed the methylation status of the imprinted MEG3 locus. In conclusion, we recommend considering upd(14)mat in patients with low birth weight, growth retardation, neonatal feeding problems, muscular hypotonia, motor delay, precocious puberty and truncal obesity as well as in patients with a PWS like phenotype presenting with low birth weight, feeding difficulties and obesity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1552-4825
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
140
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2039-49
pubmed:meshHeading
pubmed-meshheading:16906536-Adolescent, pubmed-meshheading:16906536-Child, pubmed-meshheading:16906536-Child, Preschool, pubmed-meshheading:16906536-Chromosomes, Human, Pair 14, pubmed-meshheading:16906536-Cytogenetics, pubmed-meshheading:16906536-DNA Methylation, pubmed-meshheading:16906536-Female, pubmed-meshheading:16906536-Humans, pubmed-meshheading:16906536-Infant, pubmed-meshheading:16906536-Infant, Low Birth Weight, pubmed-meshheading:16906536-Infant, Newborn, pubmed-meshheading:16906536-Male, pubmed-meshheading:16906536-Microsatellite Repeats, pubmed-meshheading:16906536-Obesity, pubmed-meshheading:16906536-Phenotype, pubmed-meshheading:16906536-Polymerase Chain Reaction, pubmed-meshheading:16906536-Prader-Willi Syndrome, pubmed-meshheading:16906536-Pregnancy, pubmed-meshheading:16906536-Proteins, pubmed-meshheading:16906536-Translocation, Genetic, pubmed-meshheading:16906536-Uniparental Disomy
pubmed:year
2006
pubmed:articleTitle
Is there a higher incidence of maternal uniparental disomy 14 [upd(14)mat]? Detection of 10 new patients by methylation-specific PCR.
pubmed:affiliation
Institut für Humangenetik, Universitätsklinikum Essen, Essen, Germany.
pubmed:publicationType
Journal Article, Case Reports, Research Support, Non-U.S. Gov't